The L.J.R EWS-440 is a 440 HP three-cylinder mud pump with a 6 in stroke and a rated speed of 320 SPM. Factory data lists a maximum working pressure of 3327 PSI and a maximum flow of 661 GPM; listed combinations include 6 in liners at 661 GPM and up to 1027 PSI, 5 in liners at 459 GPM and up to 1479 PSI, 4 in liners at 313 GPM and up to 2169 PSI, and 3 in liners at 204 GPM and up to 3327 PSI. The power end uses a forged steel build with API 7K-compliant assemblies. Its frame is a welded structure of high-strength steel plates with post-weld stress relief for dimensional stability, and critical load-bearing areas including the crankshaft and main bearing housing carry special reinforcement for added rigidity.
FAQ
What are the factory ratings of the L.J.R EWS-440 mud pump?
Factory data rates it at 440 HP input power, a maximum working pressure of 3327 PSI, a maximum flow of 661 GPM, a 6 in stroke and a rated speed of 320 SPM.
Which liner sizes are listed for the L.J.R EWS-440 and what do they deliver?
Listed examples include 6 in at 661 GPM and up to 1027 PSI, 4-1/2 in at 397 GPM and up to 1710 PSI, 4 in at 313 GPM and up to 2169 PSI, and 3 in at 204 GPM and up to 3327 PSI. For other sizes, ratings available on request.
Do you stock fluid-end parts for the L.J.R EWS-440?
We currently list no stocked items for this model; please contact us for current availability and lead time on liners, pistons, valves and seats.
Is the L.J.R EWS-440 built to any industry standard?
The EWS-440 pairs a forged steel power end with API 7K-compliant assemblies, and its welded high-strength steel frame receives post-weld stress relief with reinforcement around the crankshaft and main bearing housing.
Can you ship L.J.R EWS-440 parts to Canada, the US or overseas?
Yes. We serve Canadian, US and international oil and gas customers; these pump parts are exported under HS code 84139100.